New Front Derailleur for a Triple to Compact Double Switch?

Depending on the group, a drive-train with a triple crankset may include a different set of components than the same group in a double configuration. Some groups include special shifters and most, if not all, use a special long-cage rear derailleur and a triple specific front derailleur. Depending on what you’re working with, you may be able to use the same rear derailleur, but you’ll probably need to swap out the front derailleur for optimal shifting.

The front derailleur on a triple needs to be able to handle the wide gearing and big tooth differences. They need to be able to smoothly shift across three rings instead of two, and they need to be able to handle the substantial drop from the big ring to the smallest front chain-ring. Because of this, a triple specific front derailleur will have a longer cage and, in the case of Shimano, the inner cage will be noticeably lower than the outer one.

Luckily, a new double specific front derailleur isn’t going to cost you too much. You probably won’t have to spend more than $50 if you look around. A double front derailleur is going to give you much crisper, more reliable shifting and will allow you to get the most out of your new compact crankset.

One Review for “New Front Derailleur for a Triple to Compact Double Switch?”

  1. [...] The FSA Gossamer Compact Crankset is a pretty standard budget oriented, aluminum compact crankset designed to work with the FSA MegaExo bottom bracket. The crank arms are not hollow or carbon, but cold forged aluminum. This makes them relatively strong and stiff, but a little heavier than higher end offerings. The 50/34 chainring group is 7075 aluminum and has been custom machined to ensure clean and accurate shifting. The FSA Gossmer is designed to work with Shimano 9 and 10 speed drivetrains. If you're going from a triple to a compact double, check with the mechanic at your local bike shop because you may need a double specific front derailleur [...]